Low-Fire Glaze Recipes

1-2-3 Waxy Matte, Cone 012-09

Note that this glaze does not add up to 100%. Rather, it is using the old "parts" system where parts, or portions, are of equal weight.

• Gerstley borate* 30 * if using a G.B. substitute, adjust for ratio as needed
• Kaolin 20
• Silica oxide 10

Curdle Blue, Cone 012-09

Caution: Poisonous Raw Materials

• Gerstley borate 50
• Borax 50
• *** 0.5% cobalt oxide, 3% rutile

Cone 07 Cobalt Purple

Caution: Poisonous Raw Materials

• Soda ash 15.2
• Boric acid 60.6
• Magnesium carbonate 7.6
• Silica oxide 15.2
• Cobalt oxide 1.5

Colemanite Liner, Cone 06

• Feldspar 56.7
• Colemanite 25.8
• Zinc oxide 8.9
• Silica oxide 3.1
• Tin oxide 5.5

Cone 06 Clear

Caution: Poisonous Raw Materials

• Soda ash 30
• Lithium carbonate 9
• Kaolin 22
• Silica oxide 39

Cone 05 Base

• Gerstley borate 65
• Kaolin 15
• Silica oxide 20
• *** For blue against brown patterning, add 4% rutile, 1% cobalt oxide
• *** For bright green against light brown, add 6% rutile, 1% copper carbonate

Cone 05 Matte

• Gerstley borate 58.3
• Kaolin 2.9
• Silica oxide 38.8
• *** For orange matte, add 4% rutile, 5% tin
• *** For yellow-green matte, add 5% rutile, 2% copper carbonate

Cone 05 Matte II

• Gerstley borate* 53 * if using a G.B. substitute, adjust for ratio as needed
• Calicium carbonate 6.9
• Zinc oxide 5.5
• Kaolin 8.9
• Silica oxide 25.7
• *** For a brownish yellow-green with brown flecks, add 5% rutile, 2% copper carbonate

Cone 05-03 Marble Green Matte

Caution: Poisonous Raw Materials; Not for Use on Dinnerware.

• Lithium carbonate 26.9
• Calicium carbonate 6.9
• Bentonite 2.8
• Kaolin 13.6
• Silica oxide 53.9
• *** add 3% iron chromate, 5% broax

Cone 04 Iron Black

Caution: Poisonous Raw Materials

• Nepheline syenite 35.6
• Lithium carbonate 7.6
• Calicium carbonate 10
• Bentonite 1.2
• Red iron oxide 19.2
• Silica oxide 26.4